protected override void Execute(CodeActivityContext context)
{
DataTable dataTable = DataTable.Get(context);
string lookupValue = LookupValue.Get(context);
DataColumn dataColumn = DataColumn.Get(context);
DataColumn targetDataColumn = TargetDataColumn.Get(context);
Int32 columnIndex = ColumnIndex.Get(context);
Int32 targetColumnIndex = ColumnIndex.Get(context);
string columnName = ColumnName.Get(context);
string targetColumnName = TargetColumnName.Get(context);
object cellValue = null;
Int32 rowIndex = 0;
try
{
int beginIndex = 0, endInex = 0;
DataColumn beginColumn = new DataColumn();
if (dataColumn != null)
{
beginIndex = dataTable.Columns.IndexOf(dataColumn);
}
else if (columnName != null && columnName != "")
{
beginIndex = dataTable.Columns.IndexOf(columnName);
}
else
{
beginIndex = columnIndex;
}
if (targetDataColumn != null)
{
endInex = dataTable.Columns.IndexOf(targetDataColumn);
}
else if (targetColumnName != null && targetColumnName != "")
{
endInex = dataTable.Columns.IndexOf(targetColumnName);
}
else
{
endInex = targetColumnIndex;
}
if (beginIndex < 0 || endInex < 0 || beginIndex > endInex)
{
SharedObject.Instance.Output(SharedObject.enOutputType.Error, "数据表列索引有误,请检查开始列与结束列");
return;
}
DataRowCollection dataRows = dataTable.Rows;
for (int index = beginIndex; index < endInex; index++)
{
foreach (DataRow datarow in dataRows)
{
object data = datarow[index];
string dataStr = data as string;
if (dataStr.Equals(lookupValue))
{
rowIndex = dataRows.IndexOf(datarow);
cellValue = data;
break;
}
}
}
if (CellValue != null)
{
CellValue.Set(context, cellValue);
}
if (RowIndex != null)
{
RowIndex.Set(context, rowIndex);
}
}
catch (Exception e)
{
SharedObject.Instance.Output(SharedObject.enOutputType.Error, "查找数据表失败", e.Message);
}
}